IDEA-CR-56702 cleanup: `FORCE_PLUGIN_UPDATES` moved to `Main`

(cherry picked from commit f7b4bcd33c5608653fc10a27daee4d7c3ffa6957)

GitOrigin-RevId: 794a55dcdae34abf21161259658b9c3b5f7190c0

platform/platform-impl/src/com/intellij/idea/StartupUtil.java

@@ -74,7 +74,6 @@ import static com.intellij.diagnostic.LoadingState.LAF_INITIALIZED;
 import static java.nio.file.attribute.PosixFilePermission.*;
 
 public final class StartupUtil {
-  public static final String FORCE_PLUGIN_UPDATES = "idea.force.plugin.updates";
   public static final String IDEA_CLASS_BEFORE_APPLICATION_PROPERTY = "idea.class.before.app";
 
   @SuppressWarnings("SpellCheckingInspection") private static final String MAGIC_MAC_PATH = "/AppTranslocation/";

platform/platform-impl/src/com/intellij/openapi/command/impl/UpdatePluginsApp.java

 // Copyright 2000-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.openapi.command.impl;
 
-import com.intellij.idea.StartupUtil;
+import com.intellij.idea.Main;
 import com.intellij.openapi.application.ApplicationStarter;
 import com.intellij.openapi.progress.EmptyProgressIndicator;
 import com.intellij.openapi.updateSettings.impl.PluginDownloader;
@@ -21,8 +21,8 @@ import java.util.stream.Stream;
  * {@code idea.force.plugin.updates = "true"} system property to apply the updates.
  *
  * @author Konstantin Bulenkov
- * @see StartupUtil#FORCE_PLUGIN_UPDATES
- * @see StartupUtil#installPluginUpdates()
+ * @see Main#FORCE_PLUGIN_UPDATES
+ * @see Main#installPluginUpdates()
  */
 public class UpdatePluginsApp implements ApplicationStarter {
   @Override
@@ -37,7 +37,7 @@ public class UpdatePluginsApp implements ApplicationStarter {
 
   @Override
   public void main(@NotNull String[] args) {
-    if (Boolean.getBoolean(StartupUtil.FORCE_PLUGIN_UPDATES)) {
+    if (Boolean.getBoolean(Main.FORCE_PLUGIN_UPDATES)) {
       log("Updates applied.");
       System.exit(0);
     }